Formal:
* អត់ទេ (Ot te) - This is the most common and polite way to say no. It's similar to "No, thank you" in English.
Informal:
* អត់ (Ot) - This is a shorter and less formal way to say no.
* មិន (Min) - This is another informal way to say no, but it's less common than "អត់".
Other ways to say "no" in specific situations:
* មិនមែនទេ (Min men te) - This means "not true" or "not right."
* មិនអាចទេ (Min aach te) - This means "not possible."
Example:
* សូមអរគុណ អត់ទេ (Soam okoun Ot te) - Thank you, no.
* អ្នកចង់ទៅណា? អត់ (Anek chong tou naa? Ot) - Where do you want to go? No.
Important note: It's important to choose the appropriate way to say no based on the situation and the person you're speaking to. Using the informal forms with elders or people in positions of authority is considered disrespectful.